world economic industry trade agriculture section 8 MCQ Questions & Answers Detailed Explanation

Answer: (d)

Russia is the leading producing of Astestos.

Answer: (b)

The continental shelf is narrow all around Japan. Around the Japanese Islands, the continental shelf is 20 to 30 km wide, narrower than its world average, with shelf-slope breaks of the average depth of 140 metres.

Narrow shelves are located offshore the western coast of the Oshima Peninsula, around Toyama Bay, and offshore from the Boso Peninsula to the Kii Peninsula. The selves in Toyama Bay, Sagami Bay, and Suruga Bay are extremely narrow, less than 1 km in width in closed-off sections of the bays.

Continental shelf slopes are not flat from shorelines through outer edges, but terrace-like topography (submarine terraces) and submarine valleys are found. Submarine valleys are often filled up with sediments derived from land.

Answer: (a)

Answer: (b)

USA is the largest producer of Geo-thermal energy in the world.

Answer: (b)

Answer: (d)

The Broken Hill of Australia is famous for the mining of zinc, lead and silver. Broken Hill is an isolated mining city in the far west of outback New South Wales, Australia. The world’s largest mining company, BHP Billiton, has roots in the town.